Component Function Check

Turn ignition switch OFF, and restart engine.

Does the engine start?

YES

With CONSULT: GO TO 2 .

YES

Without CONSULT: GO TO 3 .

NO

Go to Diagnosis Procedure .

With CONSULT

1. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT.
2. Make sure that each circuit produces a momentary engine speed drop.

Is the inspection result normal?

YES

INSPECTION END

NO

Go to Diagnosis Procedure .

Without CONSULT

1. Let engine idle.
2. Check the voltage signal between ECM harness connector and ground with an oscilloscope.

   ECM				Voltage signal
   +		-
   Connector	Terminal	Connector	Terminal
   F7	17	E16	108	Courtesy of NISSAN NORTH AMERICA, INC.
   	18
   	21
   	22

   NOTE: The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?

YES

INSPECTION END

NO

Go to Diagnosis Procedure .